Just got my 2 emontxs working, 1 CT is on the meter tail, and one is on the Solar PV AC connection from the RCBO to the inverter (in the garage). All working well. I have the raspberry pi B+ and have the low write local emoncms configured.
I am just downloading the new SD card version from yesterday to try.
I would like to log total amount imported, and total amount exported, using the CT on the meter tail, and display daily graphs.
My understanding is that I need to use the Limit Positive processor to record amount imported. But I also need the Limit Negative processor on a copy of the Meter Tail input.
Is this possible?
Cheers,
A
Re: Log Kwhd Imported and Exported (not Nett)
Yes, it's been answered before. You need to "allow positive" then "Log to feed" to record the import, then "reset to zero" to kill the positive, restore the original with "+ input", then "allow negative" and "Log to feed" to record the export. If you want to display a positive value for export, multiply by -1 before you log it to the feed.
Re: Log Kwhd Imported and Exported (not Nett)
This post should point you in the right direction. It does not have the kwh/d or histograms but if you add those after each log to feed line then you should have a pretty simple setup.
http://openenergymonitor.org/emon/node/4351
Regards
Nathan
Re: Log Kwhd Imported and Exported (not Nett)
Thanks for the pointer - I did search, but didn't find that thread.
I tried adding the allow positive a couple of times and this step just disappeared from the list. The other steps remained.
I tried a few more times and it did eventually stick, but now clicking the spanner icon to go and re-edit on the inputs screen doesn't do anything. The spanner icon works on the other inputs.
All inputs are now marked inactive, and no data is being collected.
I rebooted the Pi, and still nothing is working.
Any ideas?
Cheers,
A
Re: Log Kwhd Imported and Exported (not Nett)
Anyone any ideas on this? Cheers.